Insulating-tube.



T. T. MATHER.

INSULATING TUBE. APPLICATION TILED 00114, 1909.

95 ,505. I Patented Mar. 8, 1910,

//| fl t 44 4 J &

in place, and which is ATES PATENT orr on.

I or EGG Hmon crrx imw mnsnv.

r'nso EATING-TUBE.

' Speciflcationof IiettersPatent.-

Patented Mar. 8, 1910.

Application.fl1ed 0ctober'14, 1909. Serial in. 522,632.

t known that I, THOMAS T. MATHEB,

a-citizen of the United States, residing at Egg Harbor. City, in the county of Atlantic 1 and State of New Jersey, have invented certain new and useful Improvements in InsulatingTubes, of which the following is'a specification.

- hiy invention relates to improvements in .4 insulatingtubes, the object of the invention being to provide a device of this character" comprising two members or half sections,

adapted to clamp an electric conductor bethem, and effectually insulate the conductor from adjacent objects, prevent wearing of the insulatingmaterial on the con ductor, where the wire passes close to a limb fofa tree or other object, and is liable to be rubbed, caused by the swaying of the wire and the limb, by the wind.

claims.-, I p

In the'jacco jganying drawings, Figure 1, is a view" si e elevation, illustrating the application of my improvements. Figs. 2 and 3 are perspective views of the two members separated. Fig. 4, is an enlarged view in cross section on the line Fig. 1, and Fig. 5',.is an'enlargedview in' cross section on the line 55, of Fig. 1.

My improved device comprises two half sections-or members land 2 respectively, said members ing of general semi-cylindrical form 'exteriorly, in cross section, so

-- that when together, the device has the general appearance-of a cylindrical tube, the

ends being tapered orbeveled, as shown at 3 so as to remove as far as possible any abrupt shoulders which might. catch and do injury. These members land 2 are rovided on their innerfaces with longitud mal recesses or grooves 4, which when together, constitute a receptacle for the electric w1re w 'or' conductor 5. The surfaces of these grooved portions 4 may. be roughened various ways, to effectually clamp the .wire

movement of either the wire or the tube. One roughened means-is shown in which the surface is corrugated, butof course, I .am not'limited in th s particular. -The' member 1 is provided with a series of lugs or dowel .pins 6, which are adapted to enter recesses or sockets 7 in member 2, and both of these ing annular recesses or grooves 8, three of which are shown, but I may of course employ a greater or less number. .The member 2 is made with a series of longitudinal grooves or .recesses 9 which intersect the grooves or recesses 8 therein but extend beyond the-grooves or recesse's 8, and at'their ends are internally beveled forming shoulappear.

er'ably employ holding-wires 11, and fasten them as follows: One end of the holdingwire is disposed in the groove 9, while the other end of the wire is wound around the members of the tube, until it practically fills the groove 8, when the ends of the wires are twisted together, and this twisted por- "length, is forced down into the groove 9 with its free end projected below the beveled shoulder 10, so that it cannot spring out and j acent objects or be broken 0 by the latter. A wire 11 is preferably positioned in each tube. is of any appreciable length, but of course I may make thetube in various lengths and various diameters and of various materials, but preferably of insulating selected varying in accordance with the use to which the tube is to be put.

A great many slight changes might therefore be made in the general form and arrangements of parts described without departing from my invention, and hence I do forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit -and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Let ters Patent 1s:

1. A device of the character described,

5 and prevent independent longitudinal members 1 and 2 areprovided with register- 4 ders 10 for a purpose which will hereinafter To secure the device over a wire, I preftion of the wire after beingcutolf the proper be in a position where it mi ht injure .ad-

of the grooves or recesses 8, that is where the u or non-conducting material, the material I not restrict myself to the precise details set 

